Package org.apache.lucene.search.spans

Examples of org.apache.lucene.search.spans.SpanQuery

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      @Override
      protected Analyzer getIndexAnalyzer(String field) {
        return analyzer;
      }
    };
    SpanQuery include = new SpanMultiTermQueryWrapper<>(new WildcardQuery(new Term("body", "te*")));
    SpanQuery exclude = new SpanTermQuery(new Term("body", "bogus"));
    Query query = new SpanNotQuery(include, exclude);
    TopDocs topDocs = searcher.search(query, null, 10, Sort.INDEXORDER);
    assertEquals(2, topDocs.totalHits);
    String snippets[] = highlighter.highlight("body", query, searcher, topDocs);
    assertEquals(2, snippets.length);
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      @Override
      protected Analyzer getIndexAnalyzer(String field) {
        return analyzer;
      }
    };
    SpanQuery childQuery = new SpanMultiTermQueryWrapper<>(new WildcardQuery(new Term("body", "te*")));
    Query query = new SpanFirstQuery(childQuery, 1000000);
    TopDocs topDocs = searcher.search(query, null, 10, Sort.INDEXORDER);
    assertEquals(2, topDocs.totalHits);
    String snippets[] = highlighter.highlight("body", query, searcher, topDocs);
    assertEquals(2, snippets.length);
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  }

  // LUCENE-3831
  public void testNullPointerException() throws IOException {
    RegexpQuery regex = new RegexpQuery(new Term("field", "worl."));
    SpanQuery wrappedquery = new SpanMultiTermQueryWrapper<>(regex);
       
    MemoryIndex mindex = new MemoryIndex(random().nextBoolean(),  random().nextInt(50) * 1024 * 1024);
    mindex.addField("field", new MockAnalyzer(random()).tokenStream("field", "hello there"));

    // This throws an NPE
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  }
   
  // LUCENE-3831
  public void testPassesIfWrapped() throws IOException {
    RegexpQuery regex = new RegexpQuery(new Term("field", "worl."));
    SpanQuery wrappedquery = new SpanOrQuery(new SpanMultiTermQueryWrapper<>(regex));

    MemoryIndex mindex = new MemoryIndex(random().nextBoolean(),  random().nextInt(50) * 1024 * 1024);
    mindex.addField("field", new MockAnalyzer(random()).tokenStream("field", "hello there"));

    // This passes though
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    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher searcher = newSearcher(indexReader);

    BooleanQuery query = new BooleanQuery();
    SpanQuery sq1 = new SpanTermQuery(new Term(FIELD, "clockwork"));
    SpanQuery sq2 = new SpanTermQuery(new Term(FIELD, "clckwork"));
    query.add(sq1, BooleanClause.Occur.SHOULD);
    query.add(sq2, BooleanClause.Occur.SHOULD);
    TopScoreDocCollector collector = TopScoreDocCollector.create(1000, true);
    searcher.search(query, collector);
    hits = collector.topDocs().scoreDocs.length;
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    final BooleanClause posQuery = getPosQueryOrNull(element, pos);

    if (termQuery != null && posQuery != null) {
      // if both term and POS are set, we create a query where both are at the same position
      if (mustOccur(termQuery) && mustOccur(posQuery)) {
        final SpanQuery spanQueryForTerm = asSpanQuery(termQuery);
        final SpanQuery spanQueryForPos = asSpanQuery(posQuery);
        final SpanQuery[] spanClauses = new SpanQuery[]{spanQueryForTerm, spanQueryForPos};
        return new BooleanClause(new SpanNearQuery(spanClauses, 0, false), BooleanClause.Occur.MUST);
      } else {
        throw new UnsupportedPatternRuleException("FIXME: Term/POS combination not supported yet: " + element);
      }
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  public SpanQuery getSpanQuery(Element e) throws ParserException
  {
      int end=DOMUtils.getAttribute(e,"end",1);
      Element child=DOMUtils.getFirstChildElement(e);
      SpanQuery q=factory.getSpanQuery(child);
     
    SpanFirstQuery sfq = new SpanFirstQuery(q,end);
   
    sfq.setBoost(DOMUtils.getAttribute(e,"boost",1.0f));
    return sfq;
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        includeElem=DOMUtils.getFirstChildOrFail(includeElem);

        Element excludeElem=DOMUtils.getChildByTagOrFail(e,"Exclude");
        excludeElem=DOMUtils.getFirstChildOrFail(excludeElem);

        SpanQuery include=factory.getSpanQuery(includeElem);
        SpanQuery exclude=factory.getSpanQuery(excludeElem);
     
    SpanNotQuery snq = new SpanNotQuery(include,exclude);
   
    snq.setBoost(DOMUtils.getAttribute(e,"boost",1.0f));
    return snq;
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      ArrayList clausesList=new ArrayList();
    for (Node kid = e.getFirstChild(); kid != null; kid = kid.getNextSibling())
    {
      if (kid.getNodeType() == Node.ELEMENT_NODE)
      {
        SpanQuery clause=factory.getSpanQuery((Element) kid);
        clausesList.add(clause);       
      }
    }     
    SpanQuery[] clauses=(SpanQuery[]) clausesList.toArray(new SpanQuery[clausesList.size()]);
    SpanOrQuery soq = new SpanOrQuery(clauses);   
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  public SpanQuery makeSpanNearClause() {
    SpanQuery [] spanQueries = new SpanQuery[size()];
    Iterator sqi = weightBySpanQuery.keySet().iterator();
    int i = 0;
    while (sqi.hasNext()) {
      SpanQuery sq = (SpanQuery) sqi.next();
      sq.setBoost(((Float)weightBySpanQuery.get(sq)).floatValue());
      spanQueries[i++] = sq;
    }
   
    if (spanQueries.length == 1)
      return spanQueries[0];
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Related Classes of org.apache.lucene.search.spans.SpanQuery

  • com.senseidb.search.query.SpanFirstQueryConstructor
  • com.senseidb.search.query.SpanNotQueryConstructor
  • com.tamingtext.qa.PassageRankingComponent
  • org.apache.lucene.index.memory.MemoryIndexTest
  • org.apache.lucene.queryparser.complexPhrase.ComplexPhraseQueryParser$ComplexPhraseQuery
  • org.apache.lucene.queryParser.complexPhrase.ComplexPhraseQueryParser$ComplexPhraseQuery
  • org.apache.lucene.queryparser.flexible.spans.TestSpanQueryParserSimpleSample
  • org.apache.lucene.queryParser.spans.TestSpanQueryParserSimpleSample
  • org.apache.lucene.queryParser.surround.query.SpanNearClauseFactory
  • org.apache.lucene.queryparser.surround.query.SpanNearClauseFactory
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